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    <li class="nav-header no-margin-top">
      <div class="ttip" data-toggle="tooltip" data-placement="bottom" title="The date that this version of Sub-Identify was released.">
      <span class="relatize">11 Apr 2017 07:18:17 UTC</span>
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  <li>
    Distribution: <a href="https://metacpan.org/dist/Sub-Identify">Sub-Identify</a>
  </li>
  <li>
    Module version: 0.14
  </li>
  <li>
    <a data-keyboard-shortcut="g s" href="https://metacpan.org/dist/Sub-Identify/source/lib/Sub/Identify.pm">Source</a>
    (<a href="https://metacpan.org/dist/Sub-Identify/source/lib/Sub/Identify.pm?raw=1">raw</a>)
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    <a data-keyboard-shortcut="g b" href="https://metacpan.org/dist/Sub-Identify/source/lib/Sub">Browse</a>
    (<a href="https://metacpan.org/dist/Sub-Identify/source/lib/Sub?raw=1">raw</a>)
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      <a data-keyboard-shortcut="g c" href="https://metacpan.org/dist/Sub-Identify/changes">Changes</a>
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      <a class="nopopup" href="https://metacpan.org/dist/Sub-Identify/contribute">How to Contribute</a>
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        <a rel="noopener nofollow" data-keyboard-shortcut="g r" href="https://github.com/rgs/Sub-Identify">Repository</a>
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    <li>
      <a rel="noopener nofollow" data-keyboard-shortcut="g i" href="https://rt.cpan.org/Public/Dist/Display.html?Name=Sub-Identify">Issues</a>
      (2)
    </li>
    <li>
      <a rel="noopener nofollow" href="http://matrix.cpantesters.org/?dist=Sub-Identify+0.14" title="Matrix">Testers</a>
        <span title="(pass / fail / na)">(<a rel="noopener nofollow" href="https://www.cpantesters.org/distro/S/Sub-Identify.html?oncpan=1&amp;distmat=1&amp;version=0.14&amp;grade=2" style="color: #090">1548</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/S/Sub-Identify.html?oncpan=1&amp;distmat=1&amp;version=0.14&amp;grade=3" style="color: #900">1</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/S/Sub-Identify.html?oncpan=1&amp;distmat=1&amp;version=0.14&amp;grade=4">0</a>)</span>
    </li>
    <li>
      <a rel="noopener nofollow" href="http://cpants.cpanauthors.org/release/RGARCIA/Sub-Identify-0.14">Kwalitee</a>
    </li>
    <li>
      <div class="ttip" data-toggle="tooltip" data-placement="bottom" title="The # people with an indexing permission on Sub-Identify who have released something to CPAN in the last 2 years (i.e. the # people likely able to release critical fixes in a timely manner)">
      Bus factor: 0
      </div>
    </li>
    <li>
      <a rel="noopener nofollow" href="http://cpancover.com/latest/Sub-Identify-0.14/index.html">80.00% Coverage </a>
    </li>
    <li>
      License: perl_5
    </li>
    <li class="nav-header">Activity</li>
    <li>
<div class="activity-graph">
    <img src="https://metacpan.org/dist/Sub-Identify/activity.svg?res=month" />
    <div class="comment">24 month</div>
</div>
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    <li>
      <a itemprop="downloadUrl" href="https://cpan.metacpan.org/authors/id/R/RG/RGARCIA/Sub-Identify-0.14.tar.gz">
      Download (<span itemprop="fileSize">51.89KB</span>)</a>
    </li>
    <li>
      <a href="https://explorer.metacpan.org/?url=%2Fmodule%2FRGARCIA%2FSub-Identify-0.14%2Flib%2FSub%2FIdentify.pm">
        MetaCPAN Explorer
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        Permissions
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        Subscribe to distribution
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<select onchange="document.location.href=&#39;/release/&#39;+this.value+&#39;/view/lib/Sub/Identify.pm&#39;" class="form-control tool-bar-form">
  <option disabled selected>Jump to version</option>
<option
  disabled
  value="RGARCIA/Sub-Identify-0.14"
>0.14
  (RGARCIA on 2017-04-11)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.13"
>0.13
  (RGARCIA on 2017-04-02)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.12"
>0.12
  (RGARCIA on 2015-09-08)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.11"
>0.11
  (RGARCIA on 2015-09-04)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.10"
>0.10
  (RGARCIA on 2015-01-02)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.09"
>0.09
  (RGARCIA on 2014-12-31)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.08"
>0.08
  (RGARCIA on 2014-09-17)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.07"
>0.07
  (RGARCIA on 2014-09-11)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.06"
>0.06
  (RGARCIA on 2014-09-10)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.05"
>0.05
  (RGARCIA on 2014-09-10)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.04"
>0.04
  (RGARCIA on 2008-12-15)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.03"
>0.03
  (RGARCIA on 2008-05-19)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.02"
>0.02
  (RGARCIA on 2005-05-13)</option>
<optgroup label="BackPAN">'
<option
  
  value="RGARCIA/Sub-Identify-0.01"
>0.01
  (RGARCIA on 2005-05-13)</option>
</optgroup>
</select>
    </li>
    <li class="version-diff">
<select onchange="document.location.href='/release/RGARCIA/Sub-Identify-0.14/diff/' + encodeURIComponent(this.value) + '/lib/Sub/Identify.pm'
" class="form-control tool-bar-form">
  <option disabled selected>Diff with version</option>
<option
  disabled
  value="RGARCIA/Sub-Identify-0.14"
>0.14
  (RGARCIA on 2017-04-11)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.13"
>0.13
  (RGARCIA on 2017-04-02)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.12"
>0.12
  (RGARCIA on 2015-09-08)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.11"
>0.11
  (RGARCIA on 2015-09-04)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.10"
>0.10
  (RGARCIA on 2015-01-02)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.09"
>0.09
  (RGARCIA on 2014-12-31)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.08"
>0.08
  (RGARCIA on 2014-09-17)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.07"
>0.07
  (RGARCIA on 2014-09-11)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.06"
>0.06
  (RGARCIA on 2014-09-10)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.05"
>0.05
  (RGARCIA on 2014-09-10)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.04"
>0.04
  (RGARCIA on 2008-12-15)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.03"
>0.03
  (RGARCIA on 2008-05-19)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.02"
>0.02
  (RGARCIA on 2005-05-13)</option>
<optgroup label="BackPAN">'
<option
  
  value="RGARCIA/Sub-Identify-0.01"
>0.01
  (RGARCIA on 2005-05-13)</option>
</optgroup>
</select>
    </li>

    <li>
<ul class="dependencies">
  <li class="nav-header">Dependencies</li>
  <li><a href="https://metacpan.org/pod/Test::More" title="Test::More" class="ellipsis">Test::More</a></li>
  <li><i class="ttip" title="dynamic_config enabled">and possibly others</i></li>
  <li>
    <hr>
  </li>
  <li>
    <a href="https://metacpan.org/module/Sub::Identify/requires">Reverse dependencies</a>
  </li>
  <li>
    <a href="http://deps.cpantesters.org/?module=Sub%3A%3AIdentify">CPAN Testers List</a>
  </li>
  <li>
    <a href="https://cpandeps.grinnz.com/?dist=Sub-Identify">Dependency graph</a>
  </li>
</ul>
    </li>
    <li class="nav-header">Permalinks</li>
    <li>
      <a href="https://metacpan.org/release/RGARCIA/Sub-Identify-0.14/view/lib/Sub/Identify.pm">This version</a>
    </li>
    <li>
      <a href="./Sub::Identify.html">Latest version</a>
    </li>
    <li>
<div class="plussers">
<div class="nav-header">++ed by:</div>
<div>
<a class="display-all" href="https://metacpan.org/author/AZJADFTRE"><img src="https://www.gravatar.com/avatar/104622f129da1a6299bef66eb98c6e0e?d=identicon&amp;s=20" title="AZJADFTRE" alt="AZJADFTRE"></a>
<a class="display-all" href="https://metacpan.org/author/KFLY"><img src="https://www.gravatar.com/avatar/57897625d36ae2b363cc42f05132fce9?d=identicon&amp;s=20" title="KFLY" alt="KFLY"></a>
<a class="display-all" href="https://metacpan.org/author/PLICEASE"><img src="https://www.gravatar.com/avatar/0640fb1c0a5e82f5a777f2306efcac77?d=identicon&amp;s=20" title="PLICEASE" alt="PLICEASE"></a>
<a class="display-all" href="https://metacpan.org/author/RRWO"><img src="https://www.gravatar.com/avatar/4a5274bc5d690ee3d619f044778771a7?d=identicon&amp;s=20" title="RRWO" alt="RRWO"></a>
<a class="display-all" href="https://metacpan.org/author/KES"><img src="https://www.gravatar.com/avatar/e8530f00b43b4f6a056f8ad4ee52ea47?d=identicon&amp;s=20" title="KES" alt="KES"></a>
</div>
<!-- Display counts of plussers-->
<div>
    <a href="https://metacpan.org/dist/Sub-Identify/plussers">6 PAUSE users</a>
</div>
<div>
    3 non-PAUSE users
</div>
</div>
    </li>
    <li>
    </li>
              </ul>
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<div class="breadcrumbs">
  <span>
    <a data-keyboard-shortcut="g a" rel="author" href="https://metacpan.org/author/RGARCIA" class="author-name">Rafaël Garcia-Suarez</a>
  </span>
  <span>&nbsp;/&nbsp;</span>
  <div class="release dist-release status-latest maturity-released">
    <span class="dropdown"><b class="caret"></b></span>
<select onchange="document.location.href=&#39;/release/&#39;+this.value+&#39;/view/lib/Sub/Identify.pm&#39;" class="">
<option
  selected
  value="RGARCIA/Sub-Identify-0.14"
>0.14
  (RGARCIA on 2017-04-11)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.13"
>0.13
  (RGARCIA on 2017-04-02)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.12"
>0.12
  (RGARCIA on 2015-09-08)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.11"
>0.11
  (RGARCIA on 2015-09-04)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.10"
>0.10
  (RGARCIA on 2015-01-02)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.09"
>0.09
  (RGARCIA on 2014-12-31)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.08"
>0.08
  (RGARCIA on 2014-09-17)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.07"
>0.07
  (RGARCIA on 2014-09-11)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.06"
>0.06
  (RGARCIA on 2014-09-10)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.05"
>0.05
  (RGARCIA on 2014-09-10)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.04"
>0.04
  (RGARCIA on 2008-12-15)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.03"
>0.03
  (RGARCIA on 2008-05-19)</option>
<option
  
  value="RGARCIA/Sub-Identify-0.02"
>0.02
  (RGARCIA on 2005-05-13)</option>
<optgroup label="BackPAN">'
<option
  
  value="RGARCIA/Sub-Identify-0.01"
>0.01
  (RGARCIA on 2005-05-13)</option>
</optgroup>
</select>
    <a data-keyboard-shortcut="g d" class="release-name" href="https://metacpan.org/dist/Sub-Identify">Sub-Identify-0.14</a>
  </div>
<span class="river-gauge-gauge">
  <svg width="24px"
       height="15px"
       version="1.1"
       xmlns="http://www.w3.org/2000/svg"
       xmlns:xlink="http://www.w3.org/1999/xlink">

    <g>
      <title>        River stage four &#10;
          • 37 direct dependents &#10;          • 6825 total dependents
      </title>

      <rect x="0"  y="0" width="4" height="15" fill="#7ea3f2" />
      <rect x="5"  y="0" width="4" height="15" fill="#7ea3f2" />
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      <rect x="20"  y="0" width="4" height="15" fill="#e4e2e2" />
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</span>
<div id="Sub-Identify-fav" class="logged_in">
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    <input type="hidden" name="author" value="RGARCIA">
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    <button type="submit" class="favorite highlight"><span>9</span> ++</button>
</form>
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<div class="logged_out">
<a href="./Sub::Identify.html" onclick="alert('Please sign in to add favorites'); return false" class="favorite highlight">
<span>9</span> ++</a>
</div>
   / <span>Sub::Identify</span>
</div>
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          <main class="content">


<nav class="toc">
  <div class="toc-header"><strong>Contents</strong></div>
<ul>
  <li><a href="./Sub::Identify.html#NAME">NAME</a></li>
  <li><a href="./Sub::Identify.html#SYNOPSIS">SYNOPSIS</a></li>
  <li><a href="./Sub::Identify.html#DESCRIPTION">DESCRIPTION</a>
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      <li><a href="./Sub::Identify.html#Pure-Perl-version">Pure-Perl version</a></li>
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<h1 id="NAME">NAME</h1>

<p>Sub::Identify - Retrieve names of code references</p>

<h1 id="SYNOPSIS">SYNOPSIS</h1>

<pre><code>    use Sub::Identify &#39;:all&#39;;
    my $subname = sub_name( $some_coderef );
    my $packagename = stash_name( $some_coderef );
    # or, to get all at once...
    my $fully_qualified_name = sub_fullname( $some_coderef );
    defined $subname
        and say &quot;this coderef points to sub $subname in package $packagename&quot;;
    my ($file, $line) = get_code_location( $some_coderef );
    $file
        and say &quot;this coderef is defined at line $line in file $file&quot;;
    is_sub_constant( $some_coderef )
        and say &quot;this coderef points to a constant subroutine&quot;;</code></pre>

<h1 id="DESCRIPTION">DESCRIPTION</h1>

<p><code>Sub::Identify</code> allows you to retrieve the real name of code references.</p>

<p>It provides six functions, all of them taking a code reference.</p>

<p><code>sub_name</code> returns the name of the code reference passed as an argument (or <code>__ANON__</code> if it&#39;s an anonymous code reference), <code>stash_name</code> returns its package, and <code>sub_fullname</code> returns the concatenation of the two.</p>

<p><code>get_code_info</code> returns a list of two elements, the package and the subroutine name (in case of you want both and are worried by the speed.)</p>

<p>In case of subroutine aliasing, those functions always return the original name.</p>

<p><code>get_code_location</code> returns a two-element list containing the file name and the line number where the subroutine has been defined.</p>

<p><code>is_sub_constant</code> returns a boolean value indicating whether the subroutine is a constant or not.</p>

<h2 id="Pure-Perl-version"><a id="Pure"></a>Pure-Perl version</h2>

<p>By default <code>Sub::Identify</code> tries to load an XS implementation of the <code>get_code_info</code>, <code>get_code_location</code> and (on perl versions 5.16.0 and later) <code>is_sub_constant</code> functions, for speed; if that fails, or if the environment variable <code>PERL_SUB_IDENTIFY_PP</code> is defined to a true value, it will fall back to a pure perl implementation, that uses perl&#39;s introspection mechanism, provided by the <code>B</code> module.</p>

<h1 id="SEE-ALSO"><a id="SEE"></a>SEE ALSO</h1>

<p><a href="https://metacpan.org/pod/Sub::Util">Sub::Util</a>, part of the module distribution <a href="https://metacpan.org/pod/Scalar::List::Utils">Scalar::List::Utils</a> since version 1.40. Since this will be a core module starting with perl 5.22.0, it is encouraged to migrate to Sub::Util when possible.</p>

<p><a href="./Sub::Name.html">Sub::Name</a></p>

<h1 id="SOURCE">SOURCE</h1>

<p>A git repository for the sources is at <a href="https://github.com/rgs/Sub-Identify">https://github.com/rgs/Sub-Identify</a>.</p>

<h1 id="LICENSE">LICENSE</h1>

<p>(c) Rafael Garcia-Suarez (rgs at consttype dot org) 2005, 2008, 2012, 2014, 2015</p>

<p>This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.</p></div>

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